ESP8266 websocket using AT Commands

Question

I am trying to implement websocket on ESP8266 using AT Commands, and sending following commands:

AT+CIPSTART = "TCP","My_IP_Address", 80

Response is OK

AT+CIPSEND = length_of Data\r\n

Response is OK >

GET ws://My_IP_Address/ HTTP/1.1
Origin: http://My_IP_Address\r\n
Connection: Upgrade\r\n
Host: My_IP_Address\r\n
Upgrade: websocket\r\n
\r\n

Response is as follows:

+IPD,325:HTTP/1.1 400 Bad Request
Server: nginx/1.10.2
Date: Sat, 05 Aug 2017 16:04:12 GMT
Content-Type: text/html
Content-Length: 173
Connection: close

<html>
<head><title>400 Bad Request</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<hr><center>nginx/1.10.2</center>
</body>
</html>
CLOSED

I am getting following response:

Please tell me what's going wrong?

Thanks Gyanesh

You have to execute a GET on the URL http://myipaddress/, not ws://..Use "inspect element" on some test page (e.g. websocket.org/echo.html) and look at the requests. Also en.wikipedia.org/wiki/WebSocket#Protocol_handshake . — Maximilian Gerhardt
– Maximilian Gerhardt, Commented Aug 5, 2017 at 18:37

Madhu Babu B · Accepted Answer · 2018-06-06 11:26:36Z

-1

GET / HTTP/1.1\r\n Host: My_IP_Address\r\n Connection: Upgrade\r\n Upgrade: websocket\r\n\r\n

instead of GET ws://My_IP_Address/ HTTP/1.1 Origin: http://My_IP_Address Connection: Upgrade\r\n Host: My_IP_Address\r\n Upgrade: websocket\r\n

Try...

answered Jun 6, 2018 at 11:26

Madhu Babu B

1

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

ESP8266 websocket using AT Commands

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related